> On Aug 11, 2016, at 12:09 AM, Sasikumar JP <jps...@gmail.com> wrote:
> 
> Hi,
>   Xcode defines following build variables, we can not use them in Xcode 8
> as the values are invalid octal number.
> 
>   XCODE_VERSION_ACTUAL = 0800
>    XCODE_VERSION_MAJOR = 0800
>    XCODE_VERSION_MINOR = 0800

Sounds like you should write up a bug for this, but I’m not really aware of 
what the use case for comparing the Xcode version would be to be honest...

> 
> 
> I am working on iOS project, it should be compilable in both Xcode 7 and 
> Xcode 8.
> I am planning to add the conditional compilation like below
> 
> preprocessor macro:
> 
> XCODE_VERS=$(XCODE_VERSION_MAJOR)
> 
> 
> #if XCODE_VERS > 0700
> 
> @interface SampleTableCell : UITableViewCell<CAAnimationDelegate>
> 
> #else
> 
> @interface SampleTableCell : UITableViewCell
> 
> #endif
> 
> 
> But this code throws the compilation error (Invalid digit '8' in octal
> constant) in Xcode 8, since 0800 is not a valid octal value.
> 
> Is there any work around other than creating 2 different targets(separate
> target for Xcode 7 and Xcode 8)

You don’t want the Xcode version here, you want the iOS SDK version, which in 
this case is represented by the conditional "__IPHONE_OS_VERSION_MAX_ALLOWED >= 
__IPHONE_10_0” (MAX_ALLOWED corresponds to the SDK version you link against, in 
this case the iOS 10.0 SDK).

But in the long run building with Xcode 8 (and the iOS 10.0 or later SDK) will 
be a given, so I suspect that most solve this problem by branching for that SDK 
and all the updates that come with it rather than maintaining conditionals like 
this in their code.
--
David Duncan


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